AN APPARATUS FOR DETERMINING THE WEAR STATE

摘要

- 24 Abstract The present disclosure provides an apparatus for determining a wear state of a milling tool of a surface miner. The apparatus comprises a milling roller that 5 supports a plurality of milling tools. Each milling tool comprising a chisel and a chisel holder, or a chisel holder replacement system that is equipped with a chisel and a chisel holder. The apparatus is arranged to determine a position value associated with a wear state of at least one point of the milling tool using a sensor by means of a contactless measurement method. Further, the 10 apparatus is arranged to establish a position value of an additional point of the milling tool that is subject to only slight wear or to no wear at all as a further position value. The apparatus is also arranged to compare the determined position value associated with the wear state of at least one point of the milling tool and the established position value of the additional point of the milling tool 15 with each other. The wear state of the milling tool is determined based on the difference between the determined position value associated with the wear state of the at least one point of the milling tool and the established position value of the additional point of the milling tool. 4871475_1 (GHMatters) P81651.AU.3